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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2020.10
- 수록면
- 2,183 - 2,195 (13page)
- DOI
- https://doi.org/10.1016/j.net.2020.03.015
이용수
초록· 키워드
오류제보하기
A mathematical model for the flowrate and rotation speed of RCP during idling was established. The numerical calculation method and dimensionless method were used to analyze the flow, head, torque and pressure and speed changes under idle conditions. Regularity, using the Q criterion vortex identification judgment method combined with surface flow spectrum morphology analysis to diagnose the vortex dynamic characteristics on RCP blade. On impeller blade, there is two oscillations in the pressure ratio on pressure surface in blade outlet region. The velocity on the suction surface is two times more oscillating than the inlet of blade, and there is an intersection with the velocity ratio curve on pressure surface. On blade of guide vane, the pressure ratio increases along the inlet to outlet direction, and the speed ratio decreases with the increase of idle time. There is a vortex that rotates counterclockwise on the suction surface, and the streamline on the suction surface of blade is subjected to the entrainment and blocking action of the vortex creates a large reverse flow in the main flow region. There are two vortices at the outlet of guide vane suction side and the vortices are in opposite directions.
목차
등록된 정보가 없습니다.
참고문헌 (20)
참고문헌 신청
Qizhen Ye / 2010 / Studies on the development strategy of China's nuclear power[J] / Power System and Clean Energy 26(1):3~8
Y. Lu / 2019 / Experimental study on transient performance in the coasting transition process of shutdown for reactor coolant pump[J] / Nucl. Eng. Des 346:192~199
X. U. Yi-Ming / 2011 / Comparison of computation models for idle rotate-speed of reactor coolant pumps / Power Equip 25(4):236~238
H. Gao / 2011 / Transient flow analysis in reactor coolant pump systems during flow coastdown period / Nucl. Eng. Des 241(2):509~514
L. Xia-Jie / 2009 / Test study on safety features of station blackout accident for nuclear main pump / Atomic Energy Sci. Technol 43(5):448~451
Y. Lu / 2019 / Experimental study on transient performance in the coasting transition process of shutdown for reactor coolant pump[J] / Nucl. Eng. Des 346:192~199
X. U. Yi-Ming / 2011 / Comparison of computation models for idle rotate-speed of reactor coolant pumps / Power Equip 25(4):236~238
H. Gao / 2011 / Transient flow analysis in reactor coolant pump systems during flow coastdown period / Nucl. Eng. Des 241(2):509~514
L. Xia-Jie / 2009 / Test study on safety features of station blackout accident for nuclear main pump / Atomic Energy Sci. Technol 43(5):448~451
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